Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4349447 | Phosphate-free detergent composition | Tatsuhiko Noguchi, Ryuichi Kurita, Ken Nemoto | 1982-09-14 |
| 4305836 | Detergent composition | Tatsuhiko Noguchi, Ken Nemoto, Ryuichi Kurita | 1981-12-15 |
| 4299738 | Detergent composition | Hiroshi Suzuki, Hideo Narasaki, Sigeru Seki, Takao Hirose | 1981-11-10 |
| 4208216 | Grouting materials for consolidation of soils | Hachiro Yamaguchi, Tatsuhiko Noguchi | 1980-06-17 |